Type 1 · Individual ✓ Active NPI ✓ Valid NPI checksum

Tomasz D Gutowski, MD

Surgery Physician in Modesto, CA · enumerated 2006.

Data current as of Jul 11, 2026 · sourced from CMS NPPES

National Provider Identifier

1710935127

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Registry record

Entity type Individual (Type 1)

Name Tomasz D Gutowski

Credential MD

Sex Male

Practice address 1409 E Briggsmore Ave, Modesto, CA, 95355

Phone (209) 550-4788

Enumeration date May 5, 2006

Last updated in NPPES Jun 21, 2010

Taxonomy & licenses

208600000X Surgery Physician Allopathic & Osteopathic Physicians · License A68028 (CA) Primary

2086S0129X Vascular Surgery Physician Allopathic & Osteopathic Physicians · License A68028 (CA) Secondary

MD — Doctor of Medicine: A physician who completed medical school (allopathic medicine), residency training, and state licensure. About the MD credential

Other identifiers

Identifier	Type	State	Issuer
00A680280	Medicaid	CA	—

What is an NPI number?

A National Provider Identifier (NPI) is a unique 10-digit number that CMS assigns to every U.S. healthcare provider and organization under HIPAA. Type 1 NPIs identify individual providers; Type 2 NPIs identify organizations. The NPI appears on insurance claims, prescriptions, and credentialing paperwork, and never changes — even if the provider moves or changes specialty.

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Frequently asked questions

Is NPI 1710935127 active?

Yes — as of the latest NPPES snapshot, NPI 1710935127 is active (record last updated 2010-06-21).

How do I verify Tomasz Gutowski's NPI record?

Cross-check NPI 1710935127 against the official CMS registry at npiregistry.cms.hhs.gov. This page mirrors the same public NPPES data with a monthly snapshot.

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Source: CMS NPPES (public data). Snapshot 2026-07-11. Provider record last updated 2010-06-21.